Mass killing at Sydney's biggest shopping centre.

Terrified shoppers run for their lives from a man wielding a knife,

stabbing people, including children.

I've seen a baby with stab wounds.

A baby?

Yeah.

There's a baby getting wheeled off by the ambulance.

I was hiding in the back room and I was just hearing gunshots.

It was just like the worst thing ever.

As a result, there were four female women deceased in the shopping centre and one male, and subsequently another female passed away in hospital, taking it to a total of six.

The devastating scenes at Bondi Junction are beyond words or understanding.

Australians will be shocked this evening.

From preliminary enquiries, it would appear that this person has acted alone.

If in fact it is the person that we believe it is, then we don't have fears for that person holding an ideation.

In other words, that it's not a terrorism incident.

He was just walking like he was having an ice cream in the park, you know?

And then he went up the escalators at Zara and then probably within about a minute, we heard three gunshots and that was it.

A single unit officer, inspector of police, was nearby, attended.

He was just about to ready to go on another more rampage and she told him to put it down and then she shot him.

The police officer that attended was enormously courageous.

She took the actions that she did, saving a range of people's lives.

That's confirmation of who we are, brave, strong, together.